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Fix crash on print --all for ZenUtils patches + minor improvements#341

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rolbk wants to merge 4 commits intogoogle:masterfrom
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Fix crash on print --all for ZenUtils patches + minor improvements#341
rolbk wants to merge 4 commits intogoogle:masterfrom
rolbk:master

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@rolbk rolbk commented Mar 3, 2026

Fixes a segfault when disassembling certain ZenUtils microcode patches with print --all. The crash happened in crypt_signed_hash because mpz_export returns NULL when the operand is zero, and the result was used without a null check.

Also includes:

  • Corrected match register addressing in the intro.md with the understanding from last week's discussion
  • Added "global" to the --verbose flag description, since we've stumbled over its scope a few times (wording suggestions welcome)

@matrizzo matrizzo self-assigned this Mar 6, 2026
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